JP2007275530A - Shower head - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To securely prevent water from dripping from a shower head by immediately discharging remaining hot water after the water is stopped, and to effectively prevent entering of fungi or the like. <P>SOLUTION: A water shielding plate 14 has a size sufficient to shut water spraying holes 8 formed in a water spraying plate 9, is provided in an upstream water flowing space 7 of the water spraying plate 9, which is provided in the front end of a water flowing passage 6 inside a shower head body. When the water is stopped, the water shielding plate 14 is urged toward a direction for closely contacting the water spraying plate 9 so as to shut the water spraying holes 8. When the water flows, the water shielding plate 14 is moved toward a direction separating from the water spraying plate 9 so as to open the water spraying holes 8 against the urging force by water pressure. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a shower head used mainly for washing hair in a bathroom or shower room.

  A general shower head is configured by attaching a water spray plate having a plurality of water spray holes at the tip of a water passage in the shower head main body to the shower head main body in a fixed state. In the shower head having such a configuration, after the water passage is shut off and the water is stopped, it remains in the water passage space in the shower head body in a state where the watering plate is hooked on the locking member fixed to the wall surface so as to be inclined downward. There is a problem that the hot and cold water drops as water droplets from the water sprinkling holes, giving the shower user discomfort and anxiety.

  In order to suppress such a phenomenon that the residual hot water after the water stoppage drops as water droplets (hereinafter simply referred to as water dripping), a net has been conventionally provided in the water flow space upstream of the water spray plate. Various proposals have been made in which the remaining residual hot water is retained by surface tension in the mesh body to improve water drainage and suppress dripping. One of them is that the periphery of the water spray hole in the water spray plate is formed in a convex shape toward the upstream, and the mesh body is brought into contact with and supported by the convex portion, so that surface tension is easily generated by the mesh body (for example, patents) In addition, there is a partition that divides the water flow space into an inner chamber and a water spray chamber, and a communication passage that connects the two chambers to the partition. In addition, there has been proposed a method in which a net-like portion is formed so as to be substantially horizontal so that residual water can be retained by surface tension (see, for example, Patent Document 2).

  Japanese Patent Laid-Open No. 2002-355581   JP-A-8-89851

  However, since the conventional measures against water dripping proposed in Patent Documents 1 and 2 are both to retain residual hot water in the mesh with surface tension using a net, immediately after the water stoppage, the net is used. Even if the water retention improves the water drainage and the dripping can be temporarily suppressed, after a while, that is, after the shower head is hung on the above-mentioned locking device, the water held in the net is separated from the mesh by gravity. Water dripping cannot be reliably prevented. In particular, when a mesh is used, if the mesh is made small, resistance loss at the time of water flow increases, so it is difficult to use a mesh with a too small mesh. Therefore, as described above, after a fixed time has passed since the water stoppage. There is a problem that dripping is inevitable.

  In addition, conventional water dripping countermeasures using nets cannot prevent any germs that are mixed and floating in the outside air from entering the water flow space or water channel in the shower head body through the sprinkling holes or meshes. Met.

  The present invention has been made in view of the above circumstances, and can immediately prevent the occurrence of water dripping by immediately draining residual hot water after stopping water, and is also great for suppressing invasion of bacteria and the like. The purpose is to provide a shower head that is effective.

  In order to achieve the above object, a shower head according to the present invention is a shower head in which a water spray plate having a plurality of water spray holes is fixedly attached to the shower head main body at the tip of a water passage in the shower head main body. In the upstream water flow space of the water spray plate, a water shielding plate having a size sufficient to block the plurality of water spray holes is provided, and the water shield plate is configured to block the water spray holes so as to close the water spray holes when the water is stopped. It is urged in a direction to be in close contact with the plate, and is configured to be movable in a direction away from the water spray plate so as to open the plurality of water spray holes against the urging force by water pressure when passing water. It is a feature.

  In the shower head according to the present invention, the means for urging the water shielding plate in the direction of closely contacting the water spray plate comprises the water shielding plate made of a rigid material, and the water shielding plate made of the rigid material is attached to the water spray plate. A structure in which an elastic member urging in a close contact direction is interposed between the water shielding plate and a fixing member provided in the water passing space so as to face the water shielding plate (Claim 2), and the water shielding plate Any one of the constitutions (Claim 3) configured from an elastic rubber material and energizing the water shielding plate made of the elastic rubber material in the direction of being in close contact with the watering plate by its own elastic force may be used.

  According to the present invention having the above-described characteristic configuration, when the water is stopped, the water shielding plate is moved toward the water spray plate by the urging force, so that most of the hot water remaining in the water flow space is rapidly absorbed by the water shielding plate. In addition to being able to extrude and drain to the outside, and even if a small amount of hot water remains in the water flow space because the water shielding plate adheres to the water spray plate and completely closes the water spray holes, it passes through the water spray holes. Prevents drooling and dripping down to the outside, and prevents unpleasant and anxiety by preventing the occurrence of water dripping after the shower head has been hung on the wall locking fixture as well as immediately after the water stops. Can do.

  In addition, since the plurality of water spray holes are completely closed, it is possible to prevent bacteria floating in the outside air from entering the water passage space and water passage in the shower head main body, and to ensure a sanitary usage mode. In addition, when passing water, the water shielding plate can be separated from the water spray plate by using water pressure to open a plurality of water spray holes, so that the water shield plate can be moved against the urging force during water flow operation. No special operation mechanism or the like is required, and the entire shower head can be constructed with a simple structure and at a low cost.

  In particular, when using a material made of an elastic rubber material as the water shielding plate, it is not necessary to incorporate an urging force imparting part such as a spring, and the structure can be further simplified and the cost can be reduced. It is possible to enhance the adhesion to the water spray plate to exert an excellent watertight sealing effect, and to further improve the water dripping prevention function and the invasion prevention function for bacteria and the like.

  Also, a protrusion that enters the plurality of water spray holes of the water spray plate into the water shield plate that is in close contact with the water spray plate at the time of water stoppage and eliminates the dirt of the water spray holes, and prevents the intrusion of dirt into the shower head body By adopting a configuration that provides water, the function of preventing dripping at the time of water stoppage can be further enhanced, and dirt such as dirt clogged in the sprinkling holes can be surely removed, and the dirt can be removed from the shower head. It is possible to always prevent sanitary showering without fail.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, the shower head 1 is connected to a shower hose 4 through an adapter 3 at one end of a shower head body 2 that forms a water passage 6 therein. The shower head 1 is configured so that it can be hooked and held on the shower hook 5 at the adapter 3 by being lowered from above the shower hook (locking tool) 5 fixedly installed on the wall surface of a bathroom or shower room. Has been.

  The other end 2a of the shower head body 2 is formed with a water flow space 7 that communicates with the water flow path 6 and converts the water flow direction a in the water flow path 6 into a water flow in a direction b substantially perpendicular thereto. A water spray plate 9 having a plurality of water spray holes 8 is water-tightened by a seal 10 on the end surface portion of the other end head portion 2a of the shower head main body 2 corresponding to the tip of the water flow space 7, and a set screw 12 The disk-like member 11 is fixed to the upstream water flow space 7 of the watering plate 9 so as to face the watering plate 9, and the fixed disk. A plurality of water passage holes 13 are formed around the center of the shaped member 11.

  A water shielding plate 14 having a size (diameter) sufficient to block the plurality of water spray holes 8 is provided in a portion of the water flow space 7 between the water spray plate 9 and the fixed disk member 11. The water shielding plate 14 is made of an elastic rubber material having rigidity, and the central portion 14a of the water shielding plate 14 is formed in a convex ring shape toward the disc-like member 11 so as not to block the water passage hole 13. A water pressure working chamber that is formed and has a convex pressure annular central portion 14a for applying a water pressure that moves the water shielding plate 14 away from the water spray plate 9 against a biasing force described later when water flows. 15 is formed.

  A water spray plate 9 is provided between the water shield plate 14 and the fixed disk member 11 facing the water shield plate 14 so as to close the water spray holes 8 of the water spray plate 9 when the water is stopped. A spring 16 is interposed as an example of an elastic member that applies an urging force in a direction in which the elastic member is elastically adhered to.

  According to the shower head 1 configured as described above, when a mixing faucet (not shown) is closed and water is stopped so that hot water is not supplied to the water passage 6 of the shower head body 2, it is clearly shown in FIG. In addition, the water shielding plate 14 is moved toward the water spray plate 9 by the urging force of the spring 16, and most of the hot water remaining in the water flow space 7 is rapidly transferred to the outside of the shower head main body 2 through the water spray holes 8. After the water is extruded and drained, the water shielding plate 14 is in close contact with the watering plate 9 and the watering holes 8 are completely closed. Therefore, even if a small amount of hot water remains in the water flow space 7, it does not spill outside as water droplets through the water spray hole 8. Further, not only immediately after the water stops but also when the shower head 1 is hooked and held on the shower hook (locking tool) 5 as shown in FIG. Can be eliminated.

  Further, after the water stoppage, the plurality of water spray holes 8 of the water spray plate 9 are completely blocked by the water shield plate 14, so that germs floating in the outside air can pass through the water flow space 7 and the water flow path 6 in the shower head main body 2. It is also possible to prevent sanitary use and to ensure a hygienic use mode.

  Then, the shower head 1 is unlatched from the shower hook 5 and is gripped by hand, or while being held on the shower hook 5, the above-mentioned mixing faucet is opened and the water passage 6 of the shower head main body 2 is opened. When water supply is started, water flows into the hydraulic pressure working chamber 15 through the water flow space 7 and the water flow hole 13, and the water-impervious water as shown in FIG. The plate 14 is automatically moved in the direction away from the water spray plate 9 against the urging force of the spring 16 to open the plurality of water spray holes 8, so that no special operation is required. Hot water can be sprayed radially to perform predetermined showering.

  In the above embodiment, the water shielding plate 14 is made of a rigid elastic rubber material, and this is configured to be moved and urged toward the watering plate 9 using the spring 16. A metal-made rigid material water shielding plate 14 may be used. In particular, in this case, a sealing film made of a soft rubber material is overlapped and adhered only to a surface portion of the water shielding plate 14 that is in close contact with the water spray plate 9 when water is stopped, or a resin or metal rigid plate is softly bonded. By performing insert molding in the rubber layer, it is possible to improve the blocking performance of the water spray holes 8 at the time of water stop and more reliably prevent dripping.

  Moreover, in the said embodiment, although the spring was used as an elastic member which moves and urges the water shielding board 14 to the water sprinkling board 9 side, it may replace with this and may use a leaf | plate spring, a disc spring, and rubber | gum, Furthermore, such an elastic member is not used, and the elastic rubber material water shielding plate 14 itself is configured to move and urge the water shielding plate 14 in a direction in close contact with the water spray plate 9. May be.

  Furthermore, as shown in FIG. 5, when the water shielding plate 14 is in close contact with the water spray plate 9 and closes the plurality of water spray holes 8, it enters the water spray holes 8 and is clogged in the water spray holes 8. It is preferable that the water shielding plate 14 is provided with a plurality of protrusions 14b that prevent dirt and other dirt from entering the water passage space 7 of the shower head main body 2 and prevent entry of dirt. In this case, when the water is stopped, the water shielding plate 14 is in close contact with the water spray plate 9, and the plurality of protrusions 14b can enter the water spray holes 8 to remove dirt such as scale clogged in the water spray holes 8. At the same time, it is possible to prevent entry of filth into the water flow space 7 of the shower head main body 2, and the shower head 1 can always be used in a sanitary manner. The left half of FIG. 5 shows a state where the water shielding plate 14 is in close contact with the water spray plate 9, and the right half shows a state where the water shielding plate 14 is separated from the water spray plate 9.

It is a perspective view showing roughly the composition of the shower head concerning the present invention. It is sectional drawing of the shower head concerning this invention. It is an expanded sectional view of the important section showing the operation state at the time of water stop. It is an expanded sectional view of the principal part which shows the operation state at the time of water flow. It is an expanded sectional view of the important section showing other embodiments.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shower head 2 Shower head main body 6 Water flow path 7 Water flow space 8 Water spray hole 9 Water spray plate 11 Fixed disk-shaped member 14 Water shielding plate 14b Protrusion part 15 Hydraulic action chamber 16 Spring (an example of an elastic member)

Claims (4)

In the shower head in which a water spray plate having a plurality of water spray holes at the tip of a water passage in the shower head main body is fixedly attached to the shower head main body,
A water shielding plate having a size sufficient to block the plurality of water spray holes is provided in the water flow space on the upstream side of the water spray plate, and the water shield plate is configured to block the plurality of water spray holes when the water is stopped. And is configured to be movable in a direction away from the water spray plate to open the plurality of water spray holes against the biasing force by water pressure when water is passed. Showa head.   The water shielding plate is made of a rigid material, and an elastic member that biases the water shielding plate made of the rigid material in a direction in close contact with the water spray plate is opposed to the water shielding plate in the water flow space. The showerhead according to claim 1, wherein the showerhead is interposed between the fixed member provided.   2. The shower according to claim 1, wherein the water shielding plate is made of an elastic rubber material, and the water shielding plate made of the elastic rubber material is urged in a direction in close contact with the water spray plate by an elastic force possessed by itself. head.   The water shielding plate is provided with a protrusion that enters the plurality of water spray holes of the water spray plate at the time of water stoppage to eliminate the dirt of the water spray holes and prevent the intrusion of the dirt into the shower head main body. The showerhead according to any one of claims 1 to 3.

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